hi everyone the fuel gauge on my 1999 td5 diesel has just stopped working can anyone shed any light on this for me thanks phill

Put some fuel in.

The fuel gauge sender unit comprises a rotary potentiometer operated by a float. The float rises and falls with the fuel level in the tank and moves the potentiometer accordingly.
A voltage of 5 V is supplied to the potentiometer from the instrument pack. The output voltage from the potentiometer varies according to the resistance through the potentiometer in relation to the fuel level. The output voltage is
connected to the fuel gauge in the instrument pack. The fuel gauge receives a battery voltage input and this is compared with the output voltage from the rotary potentiometer. The difference between the two voltages determines
the deflection of the fuel gauge pointer.

or possibly fuse 27 (10 amps)

Try posting in the Discovery section, had to SEARCH your profile to find out which vehicle you had